Oil burner



May 13, 1924.

' 1,493,886 G. H. LAWRENCE OIL BURNER Filed Jan. 31, "1923 2 Sheets-Sheet 1 WITNESSES lNl/E/VTDR G. H. Lawrence,

ATTORNEYS May 13, 1924. 1,493,886

G. H. LAWRENCE OIL BURNER Filed Jan. 31, 19 23 2 Sheets-Sheet 2 L 16 lgig y WITNESSES Q I uvmvrog ATTORNEYS Patented May 13, 1924.

UNITED STATES PATENT OFFICE,

OIL BURNER.

' Application filed January 31, 1922;. SerialNo. 616,149.

To all whom it may concern:

Be it known that I, GEORGE HARNISH LAWRENCE, a citizen of the United States, and resident of Owensboro, in the county of Daviess and State of Kentucky, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification.

This invention relates to oil burners especially adapted for use in boilers and furnaces of various types.

Briefly stated an important object of this invention is to provide an oil burner having simple means whereby to preheat the oil so as to gasiIy the same and air substantially in combustion.

A further object is to provide an oil burner which may be conveniently applied to a boiler or furnace, and which will operate with a minimum consumption of oil and in a highly eflicient manner.

Other objects'and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of the improved oil burner app-lied.

Figure 2is a plan view thereof, the forward portion of the burner being shown in section.

Figure 3 is a vertical longitudinal sectional view through the improved oil burner applied.

Figure 4 is a vertical transverse sectional view taken on the line 4-4 of Figure 3.

1n the drawing wherein for the purpose of illustration is shown a preferred embodiment of the invention the numeral 5 generally designates a tubular body cast or otherwise formed and having a fuel conduit 6 extending longitudinally through the chamber 7 therein, all of which is illustrated in Figure 3. v

Theforward portion of the fuel conduit or nozzle 6 is formed with a reduced opening and a valve seat 9 arranged at the rear end of the reduced opening cooperates with tflllelvalve 1 0 in controlling the outlet'of the Figure 3 further illustrates that the rear portion of the valve 10 is formed with a hand wheel 12 by means of which the valve mediate portion of the body.

may be manually regulated. The rear portion of the nozzle 6 is formed with a T-shaped coupling 13 having connection with a pipe 14 which communicates with a longitudinally extending, gasifying channel or duct 16 in the lower portion of the tubular body. The forward portion of the longitudinal duct 16 communicates with an annular duct or passage 18 wherein the liquid fuel is subjected to the heat resulting from the combustion of the fuel at the forward portion of the burner.

The annular gasifyin-g chamber is supplied with liquid fuel by means of a longitudinally extending duct 20 in the upper portion of the tubular body, the said longitudinally extending duct having communication with a fuel supply pipe 22 which may extend from a suitable point of suppl WVith reference to Figures 2 and 3 1t will be observed that the rear portion of the body is provided with a downwardly extending inlet branch 30 having a gate valve 31 by means of'which a supply of air is regulated and the gate valve 31 or the butterfly valve 31 as the case may be is controlled by means of a hand wheel 33.

With reference to the foregoing description taken in connection with the accompan ving'drawings it will be seen that the fuel oil is supplied to the longitudinally extending duct 20 from where it flows into the annular heating chamber 18. The combustion at the forward end of the burner highly heats the oil contained in the annular chamber 18 and gasifies the same. As the liquid fuel is gassified in the engine chamber 18 it flows rearwardly in the longitudinally extending duct or chamber 16v and then through the pipe 14 into the tubular nozzle 6. The position of the valve 10 regulates the quantity of gas discharged for combustion and the arrangement illustrated rovides for the eflicient mixture of air and uel for combustion.

The improved burner may be attached to a furnace 40 by means of attaching bolts 41 which extend through the o enings in an annular flange 42 surroundlng the inter- The burner preferably terminates at the inner side of the furnace as illustrated in Figure 3.

Having thus described the invention, what I body having its rear portion formed with a laterally extending air inlet branch, a longitudinally extending nozzle arranged in said body and having its forward portion formed with a reduced opening and an annular valve seat, a valve cooperating with said seat and terminating rearwardly of said-nozzle, a fuel supply pipe connected to the rear portion of said nozzle, said tubular body being provided with internal longitudinally extending fuel passages, one of which communicates with said fuel supply pipe, a liquid fuel supply member connected to the other longitudinally extending passage, the

forward portion of said tubular body being provided with an annular gasifying cham-- ber communicating with said first and second named passages and subjected to the heat of the products of combustion, a valve 1,4ee,ese

controlling the supply air to said inlet branch, and means to regulate said valve.

2. An oil burner comprising a tubular body having its forward portion provided with an internal gasifying annular chamher, said body also being provided with an upper fuel supplying conduit communicating with said annular chamber and being GEORGE HARNISH LAWRENCE. 

